Olivia Jane Wilde is an American actress. She began acting in the early 2000s, and has since appeared in a number of film and television parts, including roles on the series The O.C. and The Black Donnellys. She currently portrays Dr. Remy "Thirteen" Hadley in TV drama House.

Wilde has appeared in the films The Girl Next Door, Alpha Dog, Conversations with Other Women and Turistas. She became known for her role on The O.C. as Alex Kelly, although she originally auditioned for the role of Marissa. She has also appeared in the Dashboard Confessional music video for "Stolen", and the French Kicks music video for "So Far We Are". She was strongly considered to play Bond girl Vesper Lynd in the 21st Bond film Casino Royale; Eva Green eventually won the role.